17.68 Ct. Multi Color Cabochon White Opal (Light Opal) from Ethiopia

A finely executed White Opal, Light Opal, weighing 17.68 carat, presented in a pear shape cabochon with dimensions 21.00 x 18.10 x 8.60 mm. The cutting style is cabochon, featuring a symmetrical pear outline and a substantial dome that is consistent with the 8.60 mm depth, producing an even curvature from apex to girdle. The specimen is translucent with multicolor play, predominantly green and blue flashes under oblique illumination, a medium color intensity that balances body tone and spectral brightness, and a clarity grade of very slightly included evaluated at eye level. Polish quality is excellent, indicating meticulous final lapping and polishing stages, and the stone is reported with no enhancement, originating from Ethiopia. This combination of measured proportions, weight, and natural optical activity makes the piece a technical example of quality light opal material available through The Natural Gemstone Company.

From a lapidary perspective, the cabochon execution emphasizes optical optimization rather than faceting. The dome geometry has been planned to preserve and reveal the opal’s internal play of color, taking advantage of diffraction effects produced by the ordered silica sphere structure inherent to opal. The cutter has oriented the table and apex to favor broad flash patterns across the pear outline while maintaining minimal banding or zoning, a detail evident in the uniform distribution of color across the face. The excellent polish and clean bevel at the girdle suggest precision control during the final stages of finishing, reducing surface scattering and maximizing the saturation of visible flashes. Clarity grading at very slightly included, evaluated at eye level, indicates minor internal features that do not significantly interrupt light transmission or the aesthetic of the play of color, which is particularly important for collectors and jewelers assessing setting options.

The gem’s dimensional and optical characteristics make it versatile for both casual and formal applications, suited to bezel settings that protect the perimeter while showcasing the broad, domed table, or prong settings that allow maximum light interaction for evening wear. The medium depth and stable pear outline are well suited to rings, pendants, and bespoke statement pieces where a balance between wearability and presence is required. The translucent body and multicolor flashes allow confident pairing with both warm metals and cool metals, enabling seamless transitions from daytime casual ensembles to formal evening attire. The Natural Gemstone Company provides this Ethiopian White Opal, Light Opal, as a technically documented option for designers and connoisseurs seeking a well executed cabochon with natural provenance and no enhancements.